Videos posted to social media depict explosions at the airport. One, posted by a Turkish journalism collective, appears to show people fleeing a violent flash near the check-in area.

More videos show travelers running through the airport and hiding in an airport shop.

Update: After shutting down overnight and causing many flight delays and cancellations, the Ataturk airport has reopened. The U.S. Federal Aviation Administration has lifted the ground order that barred US flights from traveling to the busy international hub. Aviation tracking service Flight Radar 24 reports that a plane from Taipei will be the first to touch down at Ataturk after the attacks.

This is a developing story and will be updated.

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